Bug 102201

Summary: [regression, SI] GPU crash in Unigine Valley
Product: Mesa Reporter: Gregor Münch <gr.muench>
Component: Drivers/Gallium/radeonsiAssignee: Default DRI bug account <dri-devel>
Status: RESOLVED FIXED QA Contact: Default DRI bug account <dri-devel>
Severity: major    
Priority: medium CC: mirh
Version: git   
Hardware: x86-64 (AMD64)   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:
Attachments: dmesg crash log

Description Gregor Münch 2017-08-13 18:20:05 UTC 
Created attachment 133476 [details]
dmesg crash log

I get random GPU lockups in Unigine Valley. Sometimes it happens at Test 5 and sometimes in Test 9. Basically the screen is freezing but music continues playing. After sometime there is only noise on the screen. The performance went also down, I saw 57 fps in Test 1 and now only 54 fps.
I also experience something similar during playing Shadow Warrior, in the Prologue mission, GPU hangs forever.

Bisected this to:
064550238ef0b44e341b2a50c3147f83c2a6d5b0 is the first bad commit
commit 064550238ef0b44e341b2a50c3147f83c2a6d5b0
Author: Marek Olšák <marek.olsak@amd.com>
Date:   Thu Jul 27 02:40:34 2017 +0200

    radeonsi: use CLEAR_STATE to initialize some registers
    
    Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>

:040000 040000 621668e602ccd2f36299e329b096586baa920ba0 68d43945fde8fbbfad6ae444546a981af2507b03 M	src

During regression testing I faced https://bugs.freedesktop.org/show_bug.cgi?id=101969 where I saw some serious corruption of the graphics in Valley so I used this patch to overcome https://cgit.freedesktop.org/mesa/mesa/commit/?id=b9fc9d3f241758ed8a274be7abf68bf448653508 But its the same issue like in the bug report mentioned above. Seems the patch hasnt fixed all issues.

Device: AMD TAHITI (DRM 2.50.0 / 4.11.0-1-amd-staging, LLVM 5.0.0) (0x6798)
Radeon HD 7970
Comment 1 Marek Olšák 2017-08-18 14:04:49 UTC 
Fixed by 13aa8d3da92bd83abc8d5212764a15. Closing.
Comment 2 Gregor Münch 2017-08-19 11:32:41 UTC 
Can confirm this. Hangs in Shadow Warrior are also gone.

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